Accessory for a mobile device



FIG. 1 is a front perspective view of an accessory for a mobile device in accordance with the present design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a rear perspective view thereof.

FIG. 8 is an exploded rear perspective view thereof, showing the design in relationship to the unclaimed environment. 

CLAIM The ornamental design for an accessory for a mobile device, as shown and described. 